US883779A - Glass-furnace and appurtenances thereof. - Google Patents

Description

No. 883,779. PATENTED APR. 7, 1908.

H. M. 'BROOKFIELD.

GLASS FURNACE AND APPURTENANGES THEREOF. APPLICATION FILED DEC; 28. 1903.

3 SHEETSSHEET 1.

wmvessas: mvsmon ATTORNEYS No. 883,779. PATEN' IED APR. 7,-1908.

H. M. BROOKFIELD.

GLASS FURNACE AND APPURTENANCES THEREOF. APPLICATION rum) DBO. 2a. 1903.

3 SHEETS-SHEET 2.

IINVENTOR M I ET-W 1 W W ATTORNEYS No. 883,779. PATENTED APR. 7, 1908. H. M. BROOKPIELD. GLASS FURNACE AND APPURTENANGES THEREOF.

APPLICATION FILED 13120.28, 1903. v

3 SHEETS-SHEET 3.

BY 7Q *B QW ATTURN EYS WITNESSES: v

HENRY M. nnooic'rrnLn, ornnw YoRK, n. Yjl, ASSIGNOR To BROOKFIELD GLASS ooMPANY,

A CORPORATION OF NEW YORK.

' amass-cannon am) To. all whom it may "concern; I Be it known that I, HENRY M. BR'ooK- FIELD, a citizen of the United States, and a. resident of the city, county, and State of ,5 New'York, have invented certain newand view partly in section of a 2 and '5, with a discharge chamber .3, whose is a specification. y nvention relates from. Its object is to make the operation of such devices automatic, to provide devices for automatically feeding molten glass from cthe furnace, to render such. feeding certain and accurate, and to provide means for adjusting suchfeeding devices to. vary the amount of feed as required"; also 'to' automatically measure the glass. It consists of :the novel devices and combinations herein shown and described.

I have shown my improvement in connection with a press for making glass insulators although it is obvious that it' may vbe eni- -plo'yed with other apparatus and for other purposes. 7 In the drawings accompanying this s ecification and'forming part' hereof, I V ave shown and will now proceed to describe my improvement as embodied in its preferred form in connection with a press for making glass insulators.

In such drawings Figure 1 represents a side elevation of my improved devices in their preferred forms shown in connection with a press for making insulators, many of the parts of the press, having no direct connection with my improvement, being omitted merely for the sake of clearness and the furnace being shown only in part; Fig.- 2 is a longitudinal section through a part of the furnace showing my improved devices for feeding, measuring, and delivering the molten glass part of the said measuring, and delivering devices; a detail and side view of part of the 5 shows a ,modifeeding, Fig. 4 is said mechanism; and Fig.

fication of the feeding and measuring de- Vices. 5O

Referr' to the form of my invention shown in t e drawings, 1 represents a glass furnace and 2 the molten glass therein. The furnace is provided, as shown in Figs.

. Specification of Letters Patent.

Original application flied November- 15, 1901, Serial No. 82,368. Divided and'this application filed December 28,-' 1903. Serial 110.186,?68. y

to glass furnaces and shown, for

10 to means for feeding themolten glass there--.

'of the molten "carrying in the ordinary manner. ulley 18', from which power is pa-rte 'rics pulley 18,

from the furnace; Fig. 3 is a front arru'a'rnuanons mus floor 4 is raised above-the level of the floor'5 of the main part of the furnace.

6 is a boot of ordinary construction to re- :.vent the scum on the surface of the mo ten glass in the main useful Improvements in Glass-Furnaces and Appurtenances Thereof, of which the follow?- art of the furnace from passing into the ischarge chamber. The floor 4 of the discharge chamber is provided with an orifice 7 preferably beveled, as the better. seating upon it of a This valve controls the discharge lass from the furnace, and this valve may ejraised from its seat or lowered upon it by "any suitable means. shown in Figs. 1 and 2, ered by the following {described mechanism.

valve 8.

The rod 9 which carries valve .8 is pivotally secured at 10 to lever 11, fulcrumed at 12 and provided at its other end with a rod 13 a roller 14. which runs upon a cam 15', mounted on shaft 16, fingers 17 of rod 13 embracing'the shaft, as shown in Fig. 2, Shaft 16 is drlven from from any suitable source, through gear 19, mounted on the same shaft 20 which cargcar 21, turning on stud 22 and meshing with gear 19, and gear 23-011 shaft 16. By these means, valve8 is auto-. matically controlled and is opened the roper distancc and kept open just the exact l ength of time necessary to permit the desired amount of molten lass to esca e from the furnace. By chan g the s cc of the driving parts, or by a justing t e gearin the amount of discharge can be accurate y adjusted. I also prefer to make valve 8 ad justable upon rod 9, as by means of screwthreads, as shown in Fig. 2, inorder to furnish an additional means of adjustment. Valve 8 is plrovided with beveled surfaces to seat upon t shown'in Fig. 2.

26 is a burner of any suitable construction for throwing a jet of flame through orifice 27 upon the glass in the discharge chamber to the furnace. In 'the a paratus shown the lassis delivered to mol s 42 for making glass insulators in a 1plress 4 5 for that purpose. The details of t PatentedApril 7, 1908. 1

it is raised and low-- e beveled surfaces of orifice 7 as.

p v sjpress are not shown, as they form no part of the present invention.

, suitable means.

charge from the furnace so that it may be. In the form shown,

delivered to the molds. the receiver is provided with a plurality of dished surfaces 29, each provided with bounding side walls 30. As shown, the receiver is mounted integral with shaft 31 in sleeves or bearin s 32 carried by the framework of the mac inc and shaft 31 is intermittently rotated through gear 33 and wheel 34, the latter having a segment 35, provided with gear teeth, as shown in Fig. 4. Gear 34 is mounted on shaft 20, and at each revolution rotates the receiver, in the form shown in the drawings, one-third of a rotation, bringing a new dished surface into place to receive another mass of molten glass.

In, the form shown in Figs. 1-4.t he receiving surface is locked into position after each .one-third revolution. For this purpose, a

disk 36 is mounted on shaft 31 provided with dished surfaces 37 corresponding to those of the receiver and a disk 38 is mounted on shaft 20 to engage the surfaces 37, as shown in Fig. 4. A part of the periphery of disk 38 is cut away as at 39. This cut-away portion is op osite to the toothed segment 35 of Whee 34, as shown in Fig. 4. This arrangement unlocks the receiver shaft at the time that gear 35 meshes with gear 33 and permits shaft 31 and the receiver with it to rotate one-third of a revolution. The receiver may be composed of one or any number of receiving surfaces and may be of any desired form or construction. As shown, it is composed of three receiving surfaces. The interior of the receiver is preferably made hollow to receive .a cooling medium 24 supplied to it through pi es 40 and the hollow interior of shaft 31. 'nless the receiver is cooled, the molten glass is liable to stick to its surfaces.

The molten glass can be removed from the receiver for delivery to the molds by any As shown in the drawings, I provide for this pur ose a trough 41 laced so. that at each one-t ird rotation of t e receiver, the molten glass is em tied from one of. the dished surfaces upon W ich it was fed, into the trough, and passes down through the trough into a mold 42. 43, in Fig. 2, is a mass of molten glass just passing into the mold. Trough 41 is cooled by any suitable cooling medium 24 throufgh pipes 44 in order E0 prevent the sticking o the glass to its surace.

It is not essential to my broad invention that delivering mechanism be interposed between the rotating receiver and the mold, as for example, in cases where a mold is arranged to pass immediately beneath the receiver and to receive the separated masses directly from the receiver itself. I prefer,

desired receptacle. In the drawings, as

above stated, it is shown as delivered to molds mounted upon a turntable ress for 'making glass insulators, the turnta le beingrotated in the ordinary way and by any suitable means to bring each mold in turn past trough 41. 46 represents an additional trough fixed to each mold or to the .turntable in each mold to aid in carrying the molten glass from trough 41 into the mold proper.

Fig. 5 represents an arrangement in which valve 8 is adapted to be kept open during all the time the press is working and in which the glass is separated and measured by means of the rotating receiver alone and forms a longitudinal section through the receiver and a part of the furnace and trough. It is intended merely to illustrate, without giving all of the details and connections, the construction last above referred to. In this case, valve 8 can he opened and closed in any suitable way, as for instance by hand, or by in any Way disconnecting rod 9 and valve 8 from their driving mechanism shown in Figs. 14. It is left open during the operation of the press. A steady stream of moltenglass will, accordingly, flow down onthe receiver. The receiver in such case will be rotated preferably continuously, and at such a speed that from the time one edge 53 of the dished surface passes the opening 7 in the furnace until anot er edge 53 of the same dished surface passes the said point, the exact amount of molten glass required for each'insulator or other article will have flowed down through the opening upon the dished surface 29. A scraper 54, secured to the framework of the press in any suitable manner (not'shown) is arranged near the top of the receiver in close proximity to the left hand end of opening 7 53 and push or scrape the molten glass that may have fallen upon it back on to the next dished surface 29. Each mass of molten glass is emptied by its dished surface u on trough 41 in the manner already describe Many modifications and departures from the particular form of devices shown in the drawings may, of course, be made without departing from my invention, the'essentials of which are set forth in the claims appended hereto. If desired, the valve 8 may be cooled by a cooling medium in the same manner as the receiver. It will be understood that, where the valve 8 is intermittently opened and closed and the receiver 28 is intermittently seems driven, the feeding and measuring devices, for feeding andseparating the, glass into masses of the desired amount, consist of ,valve 8, rod 9 and the means for opening and closing the valve and for timing such movement, taken in connection with receiver 28 and .its driving arts. But where valve 8 is continuously le open and receiver 28 is continuously driven or rotated, the measuring devices, which separate the molten glass into masses of the desired amount, are not in contact in any way with the molten glass in the furnace but are entirely outside of the furname.

This is-theformI prefer to use. 7 In suchform by va o ning or the spee of the receiver, or bot t e amount f each. mass can be accurately ad'usted. t am aware that" attempts have'been made to automatically feed molten glass from .a furnace and to separate the lass into masses of the desired amount, but a 1 such attempts,

hand, any attempt;

so far as I know or am informed, have been failures, because the se come into contact wit the molten glass in the furnace. Such contact rapidly heats the metallic surfaces of the separating devices causing the molten glass to-stick to them and to clog-the passages and stop the a paratus and renderit wholly useless. On t e other to cool such separating devices tends to c 11 the molten glass at the pointof its discharge from the furnace and soon clogs the dischar e orifice and wholly stops the flow ofthe g ass. These troubles are completely overcome by my improved device. By their use, in their preferred form, the separating means can be properly cooled'without effecting in any way the discharge of the molten glass-from the furnace, as they are not in contact in any way with the molten glass in the furnace or at the oint of discharge, and thereby all trouble, ere

. tofore encountered in automatically feeding accurately and wit and separating glass, is effectually overcome. By means of my improvement, the amount of molten glass supplied in each instance is certainty determined;

the feed can be adjusted easily, accurately, and with certainty in order to vary the amount of glass supplied from the furnace; the feeding and measurin may be made automatic; the cost of ma 'ng glass articles,

such as insulators, is materially reduced, and

such articles themselves are made of better ap earance' and more perfect form.

his present application is a divisional apphcation of my application, Serial No. filed November 15th, 1901, for an improvement in apparatus for making glass insulators or other glass articles.

What I claim as .new and desire to secure by Letters Patent is:

1. The combination of a furnace for molten glass provided with a discharge chamber the size of the dischar e arating devices have' with the molten glass in the arating the lass into masses amount, an means automatically actuated having its floor raised above the level of the floor of the main part of the furnace, an orifice in one of the walls of the 'dischar e chamber for the discharge of the glass, an a valve for said orifice to control the discharge of olten glass therefrom. 2; The combination of a furnace for mol ten glass provided with a discharge chamberhaving its floor raised above the evel of the floor of themain part of the furnace, an orifice in the floor of the dischar e chamber for the discharge ofthe glass, a vaIve for said orifice to control the discharge of the molten giiass therefrom, and a boot separating the v p 'scharge chamber from the main part of the furnace. I i

3. The combination with a furnace pro vided with an orifice for the discharge of'niolten glass, of a trough for.

with a hollow space or chamber, and means forsupplying a cooling medium to such space or chamber, whereby the sticking of the molten glass to the surface of the trough will be prevented.

4'. In a machine for making glass insulators or other similar small glass articles the combination of a furnace for molten glass, devices for feeding the molten glass in a stream from the furnace means for heating the glass to keep it at the proper temperature at the point of discharge and for se arating the stream of glass into masses of the desired amount. 7

5. In a machine for making glass insulators- -or other similar small glass articles the combination of a furnace for molten glass, devices for feeding the molten glass in a stream from the furnace means for heating the glass to conveying the mol-' ten glass to the point of dehvery provided keep it at the proper tempera ture at the point of discharge, and measuring devices, not in contact with the molten glass in the furnace, upon which the stream of glass is adapted to fall, for separating the glass into masses of the desired amount.

6. In a machine for making glass insulators or other similar small glass articles-the combinationof a furnace for molten glass, an

orifice for the discharge of the glass therefrom means for heating the glass to keep it at the proper temperature at the point of measuring devices, not in contact furnace, for sepof the desired discharge,

for operating the measuring devices.

7. In a machine for making glass insulators or other similar small glass articles the combination ofa furnace for molten glass, an orifice for the discharge of the molten lass therefrom means for heating the glass to eep it at the proper temperature at the point of discharge, and a receiver not in contact with the molten glass in the furnace, adapted to receive the glass as discharged therefrom a proper temperature at the point discharge therefrom, a rotating receiver, provided with one or more dished surfaces, adapted to receive the stream-of glass as discharged from the furnace and to separate it into masses of the desired amount, and a scraper adapted.

to make contact with the edges of the dished surfaces, as the receiver rotates, to hold back any excess of molten glass.

9. The combination of a furnace for molten glass, means for feeding the glass and separating it into masses of the desired amount, a trough for receiving each mass separately and conveying it to the point of delivery, said trough provided with a hollow space or chamber, and means for supplying cooling medium to such space, Whereby'the sticking of the molten glass to the surfaces of the trough will be prevented.

10. In a machine for making glass insulators or other similar small glass articles the combination of a'furnace for molten glass, an orifice for the discharge of the molten lass therefrom means for heating the glass to eep sired amount, and means it at the proper temperature at the point of discharge, .a measuring device for separating the glass into masses ofthe desired amount and means for cooling said measuring device.

1 1. In a machine for making glass insulators or other similar small glass articles the combination of a furnace for molten glass, an orifice for the discharge of the molten glass therefrom means for heating the glass to keep it at the proper temperature at the point of dis charge, a measurin devicefnot in contact with the molten g ass in the furnace for separating the glass into masses of the de for cooling said measuring device.

12. In a lass measuring and delivering apparatus, t e combination with a melting pot and a chambered extension thereof adapted to contain molten glass and having a discharge orifice, a rotatable carrier journaled beneathsaid extension, receptacles on said carrier registrable successivelywith said orifice and means within the chamber and 0 through said discharge orificefor'ai feed to said receptacle.

rating 13. In combination witha receptacle for molten glass, an outlet therefrom, means for said outlet, means for opening and closin maintaining the'out et at a high temperature and-means for preventing the formation of a receptacle to which the measured quantity of glass is to be delivered.

15. In a. device for intermittently delivering molten glass from a receptacle, an outlet from the receptacle, a gate for closing and opening said outlet, means for maintaining the outlet and gate at a high temperature, means for opening and closing said gate, means for malntaining the glass flowing from said outlet at a high temperature, and means for preventing the formation of a thread from the glass falling from the outlet upon the" closure of the gate.

16. In a device for intermittently delivering molten glass from a rece tacle, an outlet for the glass, and as jets, or severing the thread tending to. orm from thecharge of glass delivered from the outlet.

17. In a'device for intermittently delivering molten glass from a receptacle, an outlet through which glass may flow from'the receptacle, a gate normally closing. said outlet, positively acting mechanism for opening the gate and means for permitting said gate to close without positively actuating it.

In testimony whereof, I have signedmy name to this specification, in the presence of two subscribing witnesses.

HENRY M. BROOKFIELD.

I Witnesses: a

EDWIN SEGER, JOHN O. GEMPLER.

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